This is the Impossiburr puzzle from Oskar van Deventer. Oskar has been making puzzles at Shapeways shop for quite awhile and keeps coming out with great designs all the time. I am reminded of M.C. Escher when I see this puzzle as the sides look like they shouldn’t be joined together. I really had to use my dexterity to get this one back to its original form. Here Oskar is explaining a little about it, giving us a tease as to what it’s about.